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AISI 317L Stainless Steel vs. SAE-AISI 8627 Steel

Both AISI 317L stainless steel and SAE-AISI 8627 steel are iron alloys. Both are furnished in the annealed condition. They have 65% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 317L stainless steel and the bottom bar is SAE-AISI 8627 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
23
Fatigue Strength, MPa 220
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 82
73
Shear Strength, MPa 380
320
Tensile Strength: Ultimate (UTS), MPa 550
500
Tensile Strength: Yield (Proof), MPa 250
330

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1010
410
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
38
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 21
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
1.5
Embodied Energy, MJ/kg 59
20
Embodied Water, L/kg 160
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
100
Resilience: Unit (Modulus of Resilience), kJ/m3 150
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.8
10
Thermal Shock Resistance, points 12
17

Alloy Composition

Carbon (C), % 0 to 0.030
0.25 to 0.3
Chromium (Cr), % 18 to 20
0.4 to 0.6
Iron (Fe), % 58 to 68
96.8 to 98
Manganese (Mn), % 0 to 2.0
0.7 to 0.9
Molybdenum (Mo), % 3.0 to 4.0
0.15 to 0.25
Nickel (Ni), % 11 to 15
0.4 to 0.7
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040